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Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.94 million. (Note: The sum of the data is $123.07 million.) Click here to view the investment data, Click here to view page 1 of the table of areas under the standard normal curve, Click here to view page 2 of the table of areas under the standard normal curv The 95% confidence interval is from $ million to $ million. Investment data (Round to two decimal places as needed.) 5.95 6.42 6.61 9.82 3.71 5.54 6.64 6,35 4.33 9,04 6.07 7.57 4,45 8.63 10.11 5,04 9,50 7.29

Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.94 million. (Note: The sum of the data is $123.07 million.) Click here to view the investment data, Click here to view page 1 of the table of areas under the standard normal curve, Click here to view page 2 of the table of areas under the standard normal curv The 95% confidence interval is from $ million to $ million. Investment data (Round to two decimal places as needed.) 5.95 6.42 6.61 9.82 3.71 5.54 6.64 6,35 4.33 9,04 6.07 7.57 4,45 8.63 10.11 5,04 9,50 7.29

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.94 million. (Note: The sum of the data is $123.07 million.) Click here to view the investment data. Click here to view page 1 of the table of areas under the standard normal curve, Click here to view page 2 of the table of areas under the standard normal curv The 95% confidence interval is from $ million to $ million. Investment data (Round to two decimal places as needed.) 5.95 6.42 6.61 9.82 3.71 5.54 6.64 6.35 4.33 9.04 6.07 7.57 4.45 8.63 10.11 5.04 9.50 7.29
Transcribed Image Text:Data on investments in the high-tech industry by venture capitalists are compiled by a corporation. A random sample of 18 venture-capital investments in a certain business sector yielded the accompanying data, in millions of dollars. Determine and interpret a 95% confidence interval for the mean amount, µ, of all venture-capital investments in this business sector. Assume that the population standard deviation is $1.94 million. (Note: The sum of the data is $123.07 million.) Click here to view the investment data. Click here to view page 1 of the table of areas under the standard normal curve, Click here to view page 2 of the table of areas under the standard normal curv The 95% confidence interval is from $ million to $ million. Investment data (Round to two decimal places as needed.) 5.95 6.42 6.61 9.82 3.71 5.54 6.64 6.35 4.33 9.04 6.07 7.57 4.45 8.63 10.11 5.04 9.50 7.29
According to a study of political prisoners, the mean duration of imprisonment for 34 prisoners with chronic post-traumatic stress disorder (PTSD) was 31.7 months. Assuming that o = 43 months, determine a 90% confidence interval for the mean duration of imprisonment, µ, of all political prisoners with chronic PTSD. Interpret your answer in words. Click here to view Page 1 of the table of areas under the standard normal curve. Click here to view Page 2 of the table of areas under the standard normal curve. ...... A 90% confidence interval for the population mean is from months to months. (Round to one decimal place as needed.)
Transcribed Image Text:According to a study of political prisoners, the mean duration of imprisonment for 34 prisoners with chronic post-traumatic stress disorder (PTSD) was 31.7 months. Assuming that o = 43 months, determine a 90% confidence interval for the mean duration of imprisonment, µ, of all political prisoners with chronic PTSD. Interpret your answer in words. Click here to view Page 1 of the table of areas under the standard normal curve. Click here to view Page 2 of the table of areas under the standard normal curve. ...... A 90% confidence interval for the population mean is from months to months. (Round to one decimal place as needed.)
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